灯泡贯流式水电站励磁系统改造探讨

Discussions on the Modification of Excitation System of Bulb Straight-flow Hydropower Station

潇湘水电站励磁系统于1995年由广州电器科学研究院完成设计,为该院早期的TKL11—6模拟型,2002年5月随潇湘1号机组投入运行,在后期运行中,逐步显示出调节性能和工作稳定性差的问题,而近年来随着电网容量的不断扩大和电压等级不断提高,从根本上对终端的各发电机组的调节特性提出了更高的要求,为适应电力系统的发展趋势和提高企业的经济效益,潇湘水电站分别进行了两台机组励磁系统的全面改造,取得了很好的效果。为其他中小型水电站励磁系统的升级改造提供了有益的参考。

The excitation system of Xiaoxiang hydropower station was designed by Guangzhou electric apparatus academy of scientific research in 1995. It＇s an early type of TKL11-6. As its putting into running with unit 1 of Xiaoxiang, it displayed bad modulation capability and stability step by step. In recent years the capacity and voltage of power grid is improving continuously. That radically requires the modulation characteristic of each terminal generator of the power grid more highly. In order to adapt the trend of the electric power system and improve the benefit of enterprise. Xiaoxiang hydropower station made its excitation system of two units a complete alteration, and gain a good effect. In this text it thoroughty discusses and compares the problems and the techno-alteration. It can offer a nice reference for other minitype power stations who want to upgrade their excitation system.